Shuttle



A ril 16, 1935. w. F. COMINSKEY 1,998,118

SHUTTLE FiledMarch 23, 1935 Patented Apr. 16, 1935 um'rrzo STATES.

SHUTTLE William F. Oominskey, deceased, late ol'Pater-son,

N. 5., by Emily A. Cominskey, administratrix,

Hawthorne, N. J.

Application March 23, 1933, a... 662,303

4 Claims.

This invention relates to the class of devices above named, and an object of the invention, among others, is the production of a shuttle provided with means for maintaining a proper tension upon the strand or thread carried thereby at all times, and particularly at the time when the movement of the shuttle is suddenly arrested at the ends of its throws.

One form of a shuttle embodying the invention and in the construction and use of which the objects herein set out, as well as others, may be attained, is illustrated in'the accompanying drawing, in which- Figure 1 is a top view of a shuttle embodying my invention.

Figure 2 is a side view of the same.

Figure 3 is a view on enlarged scale in lengthwise section through one end of a shuttle provided with this improved tensioning device and on the dotted line 3-3 of Fig. 4.

Figured is a view in lengthwise section one. plane denoted by the dotted line 4-4 of Fig. 3.

Figure 5 is a view in cross section on a plane denoted by the dotted line 5-5 of Fig. 4.

Figure 6 is a view of one end of a shuttle showing a modified form of this invention.

Figure '7 is a view on enlarged scale in lengthwise section through this shuttle on a plane denoted by the dotted line 1 -1 of Fig. 6

Figure 8 is a view in cross section on a plane denoted by the dotted line 88 of Fig. '7.

In the use of shuttles heretofore employed for weaving purposes, and especially in the operations of weaving silk, there has'been much difliculty in maintaining a proper tension upon the thread, particularly at the time when the shuttle is suddenly stopped at each end of its path of travel, at which time the shuttle strikes an arrester and the latter produces the effect of a blow on the end of the shuttle, thereby tending to disarrange and release the tension devices hereto- Iore employed and at just the time when it is most important that the tension should be maintained. My improved tension device illustrated and described herein overcomes such defects and fully maintains the tension on the thread at the time when the movement of the shuttle is suddenly arrested at each end of its path of travel, and as above described.

This improved tension device is arranged as illustrated in the drawing herein showing a shuttle H! of any well-known form as to its general construction and having a recesss II for a bobbin l2 held in place in any well known manner and containing a mass of thread l3 wound thereon and extended therefrom enter the chamber in a manner about to be described. The shuttle is rounded or pointed at its opposite ends, said ends being providedwith metal caps M to resist wear.

The thread or strand, used in shuttles prior to my invention has been extended to various sorts of tension devices but, as above stated, these have been .inefiectualtomaintainaconstant tesnion on the thread at all times. In carrying out my nurposelirprovide a pocket IS in proximity to the front end of the recess 11, that is, that end. at which the thread passes'from the shuttl'erinthe process-of weavinggintoa fabric. In a preferred arrangement of mydevice this pocket it is formed or cut into thebody of the shuttle, and as show iinjFigs-liand 4 of the drawing, said pocket'being of considerable length, and a mass of tension rods II isplaced in this pocket, enough of these rods being used to fill the pocket well above the guides I8 through which the thread passes from the're cess into the pocket and therefrom into achamber l9 in which a tension'dev-iceof'any well'l;nown form is located, this device, in thestructure herein shown, comprising a support from which eyes 2| project, bars 22 being located between theeyes and the thread passing underneath the bars and through the, eyes, as shown on Fig. 3 of the drawing. This tension device is shown as a twisted wire structure and it is pivotally mounted on a rod support 23 extending across the chamber l9 and having its ends secured in recesses in the wallsof the chamber. -This support is yieldingly held in a raised position as by'means of a spring 24,- and the thread passes from said tension device and from the shuttle through a notch 25 leading out of the chamber In the threading operation a threader, usually having a pointed end, is extended through the guides 18, being thrust through the mass of tension rods 11, the latter readily yielding to permit such movement. The thread is then attached to the threader which is then withdrawn into the chamber l9, the thread being now ready for threading through the tension device in said chamber.

It will be noted that the thread or strand extends in a devious path through the mass of rods I1 and the latter will always maintain a frictional hold on the thread irrespective of conditions in the shuttle incident to the process of weaving. The ends of the guides l8 are spaced from the pocket l6 so that the thread will not be pinched between the rods l1 and the guides and consequently severed, or the walls of the pocket adjacent the guides may be grooved as at 29 to obtain the same result, either or both of these features being employed.

A cover 26 is secured in a recess in the shuttle to cover the pocket l6, and as shown in Figs. 1 and 4 of the drawing, this cover may be secured in any suitable manner.

The device shown in Figs. 6 to 8 inclusive is substantially the same, so far as operation is concerned, as that above described. In this form of the device the pocket for the tension rods I1 is composed of a metal case 21 comprising a'top secured in a recess in the outer surface of the shuttle and a downwardly extending'portion resting against the bottom of the recess I I. A notch 28 is formed in the side wall of the case through which the thread passes into the mass of tension rods. I

It is customary in shuttles of this type to insert a piece of fur on opposite sides of the recess II and extending for the full length of the bobbin to prevent the thread from ballooning and at the same time create a friction-serving as a tension. In the present case the inventor has done away with this fur or hair except inthe extreme and reduced end of the bobbin, as shown at 39, but even this may be eliminated, if desired.

Claims: 1

l. A shuttle having a bobbin recess therein and a pocket opening into said recess, and a mass of rods in said pocket arranged to be brought into contact with the thread passing from a bobbin in said recess through said mass to effect an even tension on said' thread, said rods being of such size that the sum of the diameters of any two rods at each side of the thread will be less than the width of said pocket and the width of the pocket is less than the sum of the diameters of all the rods at the same side of the thread to effect interchangeability and displacement of the rods so that difierent rods are shifted from positions out of contact with the thread to positions in contact with said thread andto thereby avoid scoring of the rods by the thread, said pocket confining said mass to permit movement of the thread therethrough.

2. A shuttle having a bobbin recess therein, a pocket formed in the body of the shuttle with an opening from theshuttle recess to said pocket and an opening therefrom, and a. mass of rods loosely supported in said pocket and arranged to be brought in contact with the thread passing from the bobbin in said recess through said mass to effect an even tension of said thread, said rods being of such size that the sum of the diameters of any two rods at each side of the thread will be less than the width of said pocket and the width of the pocket is less than the sum of the diameters of all the rods at the same side of the thread to effect interchangeability and displacement of the rods so that difierent rods are shifted from positions out of contact with the thread to positions in contact therewith to thereby avoid scoring of the rods by the thread, said pocket confining said mass to permit movement of the thread therethrough.

3. A shuttle having a bobbin recess therein, a pocket formed in the body of the shuttle, an opening from the shuttle recess to said pocket, and a mass composed of rods loosely arranged in said pocket and arranged to be brought into contact with thread passing from the bobbin in said recess through said mass to effect an even tension on said thread, said rods at each side of the thread being of such size that the sum of the diameters of any two rods will be less than the width of said pocket and the width of the pocket is less than the sum of the diameters of all the rods at the same side of the thread to effect interchangeability and displacement of'the rods so that different rods are shifted from positions out of contact with the thread to positions in contact therewith and to thereby avoid scoring of the rods by the thread, said pocket confining said mass to permit movement of the thread therethrough.

4. A shuttle having a bobbin recess therein, a pocket formed in said shuttle, an opening into said pocket, said opening being recessed at its entrance into the pocket, an opening leading out of said pocket, and a mass of rods in said pocket arranged to be brought into contact with the thread passing from a bobbin in said recess through said mass to effect an even tension on said threads, said rods at each side of the thread being of such size that the sum of the diameters of any two rods will be less than the width of said pocket and the width of the pocket is less than the sum of the diameters of all the rods at the same side of the thread to effect interchangeability and displacement of the rods so that different rods are shifted from positions out of contact with the thread to positions in contact therewith and to thereby avoid scoring of the rods by the thread, said pocket confining said mass to permit movement of the thread therethrough.

I EMILY A. COMINSKEY, Administratria: of William F. Cominskey, De-

ceased. 

